Bearing protector



eh A. F. POIRIER BEARING PROTECTOR Filed March 1926 V154 Mann Patented Feb. 22, 1927.

UNITED STATES ARTHUR F. POIRIER, OF WILTON, MAINE,

BEARING PROTECTOR.

Application filed March 15, 1928. Serial No." 94,888.

This application is devoted to an improvement over the construction shown by my prior U. S. Patent, No. 1,205,012, of November 11, 1916. In the patented structure,

a protector was provided for a U-shapcd bearing or puppet of a carding machine, said protector consisting of a casing to fit over the upper end of the bearing and having end plates with openings for the reception of the shaft. It was found in actual practice, that when repeatedly removing the casing from the bearing or puppet, whenever it was necessary to disengage the shaft therefrom, the casing would become-badly bent and could only be reapplied with difficulty.

Moreover, as the puppet heads or bearings in common use are not provided with shaftreceiving channels of uniform depth and are themselves of difierent sizes, it was impossible to produce a protector which would be universally adaptable to all machines and would not interfere with proper movement of the shaft entirely to the bottom of the shaf -receiving channel. It is to overcome these difliculties that I have produced the novel subject matter hereinafter described and claimed, the description being supplemented by the accompanying drawings.

Fig. 1 is a side elevation of one of the hearings or puppet heads, the shaft mounted therein, and the improved protector operatively related with the bearing and shaft.

Fig. 2 is a transverse sectional View on line 2-2 of Fig. 1.

Fig. 3 is a longitudinal section 'as indicated by line 3-3 of Fig. 2.

Fig. 4 is a transverse sectional view on line %4: of Fig. 1'.

Fig. 5 is a side elevation partly broken away and in section, of the protector separate from the bearing and shaft.

Fig. 6 is a transverse sectional view on line 66 of Fig. 5.

The numeral 7 on the drawing, designates a conventional form of bearing or puppet head, having the usual shaft-receiving channel 8, and the numeral 9 has reference to the shaft of a working or stripping roller of a carding machine, said shaft engaging the usual bushing 10 in the bottom of the channel 8.

The improved protector comprises a horizontally elongated bloc; 11 of a length and width corresponding to the length and width of the channel 8, and provided with flat sides 12 to contact slidably with the opposed side walls of said channel. Integral with the ends of this block 11, and projecting downwardly therefrom, are two end plates 13 to contact with the ends of the puppet head or hearing 7, said end plates having openings 1a to receive theshaft 9. By this construction and arrangement, the block 11 will follow the shaft 9 as the latter is inserted into the channel 8, regardless of the depth of this channel, and the device possesses no parts to transversely straddle the puppet head or hearing to interfere with this following motion, regardless of the transverse dimension of said head or bearing. Moreover, the improved protector-is readily removable bodily with the shaft 9, without causing any delay or inconvenience whatever.

As in the patent above referred to, collars 15 are preferably secured to the shaft 9 to hold the protector against axial movement thereon when said shaft is removed from the bearing.

Preferably, the lower or inner side of the block 11 is longitudinally channeled as at 16 and an oil inlet 17 is formed through said block to the channel. Thus, lubricating oil in abundant quantity may be supplied to the shaft and the bearing. It will be seen that while the invention 1s exceptionally simple and inexpensive, it is unusually desirable and will be very efficient to exclude all foreign matter, such as threads, lint and the like from the bearing. On account of the excellent results obtainable from the details disclosed, they are preferably followed. However, within the scope of the invention as claimed, variations may be made.

I claim:

1. In combination with a bearing having a shaft receiving channel and a shaft engaging the inner end of the channel, a block having a length and width corresponding to the length and width of said channel and provided with flat sides to contact slidably with the outer portions of the opposed. side walls of the channel, said block entirely closing the outer portion of the latter and having its inner surface spaced from the shaft, and end plates formed integral with and projecting laterally from the ends of the block and engaging the ends of the bearing to entirely close the ends of the channel, 110 said end plates having openings through which the shaft passes.

2. A protector for a bearing having a and projectinglaterally at right angles from shaft receiving channel, said protector comthe end of the solid block, said end plates prising a solid substantially rectangular having shaft receiving openings. 0 block adapted to be inserted into the chan- In testimony whereof I have hereunto af- 5 nel of said bearing and having flat parallel fixed my signature.

sides and a longitudinally channelled inner surface and end plates formed integral with ARTHUR F. POIR-IER. 

